I have two #iMacs running #debian. Today, I decided to look at that #dmesg that flashes by as I boot. I do not feel any great problem, but, well, curiosity has got the better of me.
Here is the message (reformatted to hopefully suit mastodon's boxes):
[ 0.205100] apple-properties: device path parse error -19 at 0x14:
00000000: 52 00 00 00 01 00 00 00 02 01 0c 00 d0 41 03 0a R............A..
00000010: 00 00 00 00 01 01 06 00 00 02 7f ff 04 00 2c 00 ..............,.
00000020: 00 00 41 00 41 00 50 00 4c 00 2c 00 69 00 67 00 ..A.A.P.L.,.i.g.
00000030: 2d 00 70 00 6c 00 61 00 74 00 66 00 6f 00 72 00 -.p.l.a.t.f.o.r.
00000040: 6d 00 2d 00 69 00 64 00 00 00 08 00 00 00 04 00 m.-.i.d.........
00000050: 12 04 ..
"-19" is -ENODEV (no device). The efi table at offset 0x14 reads 01 01 06 00 00 02 ... I have no idea what the parser is expecting, or why these bytes cause it to plerk.
I have never ever looked at the EFI code before, nor really at EFI at all. It has always JustWorked for me. But ... well, now I am curious.
It is the remotest of chances, but, does anyone out there have a clue or *clue for me?

🍵 

